Loxi: Ironically, I think most people will play this for the Cyclonic Rift part of the second bit and just use this as great mill/discard-fodder

Evasion Strategy : 25 cards Changeling Outcast, Merfolk Windrobber, Slither Blade, Triton Shorestalker, Azure Beastbinder, Dauthi Voidwalker, Ghostly Pilferer, Invisible Stalker, Krydle of Baldurs Gate, Mercurial Spelldancer, Oonas Blackguard, Shoreline Looter, Soaring Thought-Thief, Thieving Skydiver, Blackbloom Rogue, Halo Forager, Nighthawk Scavenger, The Destined Thief, Enigma Thief, Access Tunnel, Escape Tunnel, Rogues Passage, Soaring Seacliff, Ringsight Mill Strategy : 28 cards Merfolk Windrobber, Thieves Guild Enforcer, Duskmantle Guildmage, Krydle of Baldurs Gate, Soaring Thought-Thief, Anowon, the Ruin Thief, Consuming Aberration, Syr Konrad, the Grim, Drown in the Loch, The Water Crystal, Maddening Cacophony, Didnt Say Please, Thought Collapse, Archive Trap, Traumatize, Cut Your Losses, Mindcrank, Riverchurn Monument, Bloodchief Ascension, Court of Cunning, Fraying Sanity, Psychic Corrosion, Kitsunes Technique, Duskmantle, House of Shadow, Ipnu Rivulet, Nephalia Drownyard, Jidoor, Aristocratic Capital, Singularity Rupture Anowon, the Ruin Thief makes all our Rogues having Mill synergy when they deal combat damage to a player and that works wonders with our Evasion strategy

According to EDHREC.com, a full 18% of Commander decks registered there run it (88,947 as of the writing of this article, which actually seems underplayed to me...) which is a big chunk
If its mana cost includes , X is considered to be 0
Just remember: theyre middlemen and need to make a profit, so their cash offer will probably be lower than the true market value you could get online
Rook Turret Rarity: Common TYPE: Artifact Creature SUBTYPE: Construct CMC: 4 Mana cost: USD: $0.18 EUR: 0.07 TIX: 0.04 EDHREC RANK: 8892 (3/3) Flying Whenever another artifact you control enters, you may draw a card